In　order　to　analyze　the　basic　performance　of　artificial　biomedical　material　and　study　their　actual　work　state　in　the　human　environment,　a　hyperelastic　plan-strain　model　of　artificial　intervertebral　disc　which　consists　of　end-plates,　annulus　and　nucleus　is　developed.　The　hyperelastic　deformation　of　artificial　intervertebral　disc　under　the　loadings　of　extension,　pressure　and　shearing　force　are　investigated.　The　nonlinear　load-displacement　curves　and　the　stress-displacement　curves　of　the　artificial　intervertebral　disc　are　obtained.　It　is　shown　that　the　nonlinear　behavior　of　the　artificial　intervertebral　disc　can　be　simulated　by　the　hyperelastic　model.